Wheel assembly



FIG. 1 depicts a perspective view of a wheel assembly, showing the novel design, as utilized with a suitcase;

FIG. 2 depicts a perspective view of a wheel assembly, showing the novel design; and,

FIG. 3 depicts a side view of a wheel assembly, showing the novel design.

In addition, the broken lines showing elements of the wheel are for the purpose of illustrating environment and form no part of the claimed design. 

What is claimed is the ornamental design for a wheel assembly, as shown and described. 